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Alexa Fluor 647 Peptide Labeling

Alexa Fluor 647 Peptide Labeling Alexa Fluor 647 is a far-red fluorescent dye widely used for peptide conjugation, imaging, and flow cytometry. Its strong far-red signal and high photostability make it useful for sensitive detection and multicolor fluorescence

Written by Peptide Therapy Guide Editorial Team
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Alexa Fluor 647 Peptide Labeling

Alexa Fluor 647 is a far-red fluorescent dye widely used for peptide conjugation, imaging, and flow cytometry. Its strong far-red signal and high photostability make it useful for sensitive detection and multicolor fluorescence assays.

Key Properties

Excitation / Emission

650 / 668 nm

Color

Far-red

Laser Compatibility

633 nm / 640 nm

Typical Use

Microscopy, flow cytometry, multicolor staining

Notes

Common far-red choice for high-sensitivity imaging

Alexa Fluor 647 Spectrum

Why Use Alexa Fluor 647?

Strong far-red fluorescence for low-background imaging

Useful for multicolor fluorescence panel design

Compatible with 633 nm and 640 nm laser systems

Widely used in imaging and flow cytometry workflows

Related Dyes

Cy5

ATTO 647N

ATTO 550

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Customization to Fit Specific Research Needs

Every research project is unique—and so are your labeling requirements. We offer a wide range of labeling options, including fluorescent dyes, biotin, stable isotopes, and affinity tags, with full customization in sequence design, labeling site selection, and conjugation chemistry. Our team works closely with you to develop labeling strategies that fit your experimental design and platform compatibility.

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Peptide Therapy Guide Editorial Team

Editorial team for Peptide Therapy Guide.

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